Download Test! - Cobb Learning

Test will cover:
•Everything is made up of atoms. Atoms can not be seen
with the human eye.
•There are three subatomic particles in an atom.
• protons(positive charge), neutrons (no
charge), electrons (negative charge).
• Protons and neutrons are found in the
nucleus.
• Electrons are found on the outer shells and
are the smallest particles of an atom.
•All elements can be found on the periodic table.
•Elements are pure substances made of one type of atom.
How to read the periodic table:
TEST on
Chapters
Test!
11 & 12
Friday, October
16th
What Test?
Test Review
Session
Thursday AM
Hints for the TEST:
Periods are the rows
and represent the
number of energy
levels in the electron
cloud
•Look over the notes we did in class and see if you can fill
them in without looking at the answers
•Check the blog for extra help
•Look over key terms (vocabulary)
•Make flashcards of vocabulary words that you do not know
Groups are the columns
and represent the number
of electrons in the outer
energy level
The elements go from
highly reactive on the left
to non-reactive on the
right
•Read over section summaries to get the highlights
•Study quiz questions on this review sheet
•ASK QUESTIONS! ASK QUESTIONS! ASK QUESTIONS!
•DO NOT WAIT TILL THE LAST MINUTE TO STUDY!
Vocabulary:
Atoms
element
pure substance
Nucleus
proton
neutron
Electron
periodic table
groups
Periods
valance electron
strong force
Symbol
Electron cloud
ion
isotope
Name of element
Metals
metalloids
non-metals
Alkali metals
carbon group
alkaline earth metals
Oxygen group
halogens
noble gasses
Democritus
Dalton
Thomson
Rutherford
Bohr
Atomic number
Atomic mass
(#protons)
(protons+Neutrons)
Atomic number is the number of protons and
electrons in the atom
Atomic Mass is the number of protons + number of
neutrons in an atom
Atomic mass – atomic number = # neutrons
Atomic Theory:
Know what Democritus, Dalton, Thomson,
Rutherford, and Bohr all have in common and what
each of them contributed to Atomic Theory. They
all contributed to the Atomic Theory.
Democritus: first person to come up with ideal of atom
Dalton: considered the “Father of Atomic Theory” and
said all atoms of different elements are different
Thomson: credited with discovering the electrons and
described them with the plumb pudding model
Rutherford: used the “Gold Foil Experiment” to
discover the existence of atomic nucleus and protons
Bohr: proposed that the electrons orbit the nucleus at
Transitional metals
The Horizontal rows on the periodic table are called periods.
The Vertical columns on the periodic table are called
families or groups.
The number above the symbol in an individual element’s box
is called atomic number.
The number below the symbol in an individual element’s box
is called atomic mass.
How do find the number of protons in a neutral atom?
Protons = atomic number
How do you find the number of neutrons in a neutral atom?
Atomic mass - protons
How do you find the number of electrons in a neutral atom?
Electrons = protons
Quiz me please…
Group Numbers:
Represent # of electrons in
outer energy level
1) An atom is made out of protons, neutrons, & electrons.
2) What are the charges of the particles listed in #1?
Protons positive charge, neutrons neutral charge,
& electronsnegative charge
1
8
2
34567
3) Draw a diagram of a Boron atom.
1) To find the atom’s atomic mass, you would add the # of
protons plus the # of neutrons.
2) What particle of an atom has the smallest mass?
electrons
Who proposed the plum pudding model of an atom? What
did it look like?
NonReactive
Highly
Reactive
What is an isotope? any of two or more forms of a chemical
element, having the same number of protons in the nucleus,
or the same atomic number, but having different numbers
of neutrons in the nucleus, or different atomic weights.
What is an ion? An ion (/ˈaɪən, -ɒn/) is an atom or a
molecule in which the total number of electrons is not equal
to the total number of protons, giving the atom or molecule
a net positive or negative electrical charge.
Electrons are found in the electron clouds.
What is the mass of an atom of Beryllium? How many
neutrons, protons, and electrons does it have?
protons = atomic number 4
electrons = atomic number 4
neutrons = rounded atomic mass - atomic number 9-4=5
Anatomy of an Atom:
Nucleus
Which contains:
protons
neutrons
electrons
1) If an atom has 25 protons, 27 neutrons, and
25 electrons, what is it’s atomic mass and
atomic number?
2) The periodic table is organized into rows
called periods and columns called groups or
families.
3) What are the 3 classes of elements? metals,
metalloids, & nonmetals.
4) Transition metals are good conductors of
electricity and heat.
5) List the group names and their reactivity
(high, medium, or low). Which group has
more than one column in it?
6) Fill out the concept maps below:
proton
electron
neutron
nucleus
charge
Atomic mass
mass
metals
solids
metalloids
shiny
nonmetals
gases